Function otter_api_tests::crates::otter_support::crates::nix::sys::socket::recvmmsg
[−]pub fn recvmmsg<'a, I, S>(
fd: i32,
data: impl IntoIterator<Item = &'a mut RecvMmsgData<'a, I>, IntoIter = impl ExactSizeIterator<Item = &'a mut RecvMmsgData<'a, I>> + Iterator>,
flags: MsgFlags,
timeout: Option<TimeSpec>
) -> Result<Vec<RecvMsg<'a, S>, Global>, Errno> where
I: 'a + AsRef<[IoSliceMut<'a>]>,
S: 'a + Copy + SockaddrLike,
Expand description
An extension of recvmsg
that allows the caller to receive multiple
messages from a socket using a single system call. This has
performance benefits for some applications.
iov
and cmsg_buffer
should be constructed similarly to recvmsg
Multiple allocations are performed
Arguments
fd
: Socket file descriptordata
: Struct that implementsIntoIterator
withRecvMmsgData
itemsflags
: Optional flags passed directly to the operating system.
RecvMmsgData
iov
: Scatter-gather list of buffers to receive the messagecmsg_buffer
: Space to receive ancillary data. Should be created bycmsg_space!
Returns
A Vec
with multiple RecvMsg
, one per received message